Abstract: A portable electronic device includes a first body, a second body and a guiding assembly. The first body is disposed adjacently to the second body. The second body has a groove with a positioning portion. The guiding assembly has a guiding part fixed at the first body. The guiding part has a guiding portion slidingly disposed at the groove to allow the second body to slide relatively to the first body. When the guiding portion slides to the positioning portion, the second body is capable of rotating relatively to the first body, and the guiding portion is allowed to be fastened in the positioning portion. Thus, an angle is formed between the second body and the first body.

Abstract: A portable electronic device includes a first body, a second body, a guiding assembly, a first elastic element and a connecting part. The first body has a track portion and a protrudent block, and the second body has a fastening part. The guiding assembly has a sliding rod and a guiding part. The two ends of the sliding rod are fixed at the first body, and the sliding rod passes through the guiding part. The first elastic element connects to the first body and the second body. The connecting part is fixed at the second body. The sliding portion is slidingly disposed at the track portion, and the pivot passes through the guiding part. As a result, not only the first body slide relatively to the second body, but also an angle is formed between the first body and the second body.

Abstract: A rotating mechanism and an electronic device using the same are provided. The rotating mechanism is disposed at the electronic device. The electronic device includes a first casing and a second casing. The rotating mechanism includes a first gear and a second gear. The first gear is coupled to the first casing. The second gear is coupled to the second casing. The second gear is engaged with the first gear, and then the first casing is capable of rotating relatively to the second casing.